Gaya APA

al., W, S, E. (2003). Contextual Learning Developing Competencies in English Use for SMU . Bandung: Gravindo Media Pratama.

Gaya MLA

al., Wachyu, Sundayana,, Et. "Contextual Learning Developing Competencies in English Use for SMU". Bandung: Gravindo Media Pratama, 2003. Text.